SHARE-BASED COMPENSATION - Stock Option Activity (Details) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2025 USD ($) $ / shares shares	Dec. 31, 2024 USD ($) $ / shares shares
Number of Options
Ending balance (in shares)	13,901,472
Options to purchase common stock
Number of Options
Beginning balance (in shares)	11,348,519
Granted (in shares)	4,817,827
Exercised (in shares)	(246,953)
Forfeited or expired (in shares)	(2,017,921)
Ending balance (in shares)	13,901,472	11,348,519
Vested or expected to vest (in shares)	13,901,472
Exercisable (in shares)	3,990,191
Vested (in shares)	3,990,191
Weighted-Average Exercise Price
Beginning balance (in dollars per share) \| $ / shares	$ 18.11
Granted (in dollars per share) \| $ / shares	15.00
Exercised (in dollars per share) \| $ / shares	12.39
Forfeited or expired (in dollars per share) \| $ / shares	23.02
Ending balance (in dollars per share) \| $ / shares	16.42	$ 18.11
Vested and expected to vest (in dollars per share) \| $ / shares	16.42
Exercisable (in dollars per share) \| $ / shares	18.07
Vested (in dollars per share) \| $ / shares	$ 18.07
Weighted average remaining contractual term and Aggregate intrinsic value
Outstanding (Weighted Average Remaining Contractual Term)	8 years 9 months 14 days	7 years 10 months 6 days
Vested or expected to vest (Weighted Average Remaining Contractual Term)	8 years 9 months 14 days
Exercisable (Weighted Average Remaining Contractual Term)	8 years 18 days
Vested (Weighted Average Remaining Contractual Term)	8 years 18 days
Outstanding (Aggregate Intrinsic Value) \| $	$ 4,723	$ 37,138
Vested and expected to vest (Aggregate Intrinsic Value) \| $	4,723
Exercisable (Aggregate Intrinsic Value) \| $	1,814
Vested (Aggregate Intrinsic Value) \| $	$ 1,814

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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Gross number of share options (or share units) granted during the period.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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